silverstripe-cms/code/BulkLoaderAdmin.php

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<?php
/**
* Class to provide batch-update facilities to CMS users.
* The BulkLoaderAdmin class provides an interface for accessing all of the subclasses of BulkLoader,
* each of which defines a particular bulk loading operation.
*
* This code was originally developed for Per Week in collaboration with Brian Calhoun.
*/
class BulkLoaderAdmin extends LeftAndMain {
/**
* Initialisation method called before accessing any functionality that BulkLoaderAdmin has to offer
*/
public function init() {
Requirements::javascript('cms/javascript/BulkLoaderAdmin.js');
parent::init();
}
/**
* Link function to tell us how to get back to this controller.
*/
public function Link($action = null) {
return "admin/bulkload/$action";
}
public function BulkLoaders() {
$items = ClassInfo::subclassesFor("BulkLoader");
array_shift($items);
foreach($items as $item) {
$itemObjects[] = new $item();
}
return new DataObjectSet($itemObjects);
}
/**
* Return the form shown when we first click on a loader on the left.
* Provides all the options, a file upload, and an option to proceed
*/
public function getEditForm($className = null) {
if(is_subclass_of($className, 'BulkLoader')) {
$loader = new $className();
$fields = $loader->getOptionFields();
if(!$fields) $fields = new FieldSet();
$fields->push(new FileField("File", _t('BulkLoaderAdmin.CSVFILE','CSV File')));
$fields->push(new HiddenField('LoaderClass', '', $loader->class));
return new Form($this, "EditForm",
$fields,
new FieldSet(
new FormAction('preview', _t('BulkLoaderAdmin.PREVIEW',"Preview"))
)
);
}
}
public function preview() {
$className = $_REQUEST['LoaderClass'];
if(is_subclass_of($className, 'BulkLoader')) {
$loader = new $className();
$results = $loader->processAll($_FILES['File']['tmp_name'], false);
return $this->customise(array(
"Message" => _t('BulkLoaderAdmin.PRESSCNT','Press continue to load this data in'),
"Results" => $results,
"ConfirmForm" => $this->getConfirmFormFor($loader, $file),
))->renderWith("BulkLoaderAdmin_preview");
}
}
/**
* Generate a confirmation form for the given file/class
* Will copy the file to a suitable temporary location
* @param loader A BulkLoader object
* @param file The name of the temp file
*/
public function getConfirmFormFor($loader, $file) {
$tmpFile = tempnam(TEMP_FOLDER,'batch-upload-');
copy($file,$tmpFile);
return new Form($this, "ConfirmForm", new FieldSet(
new HiddenField("File", "", $tmpFile),
new HiddenField("LoaderClass", "", $loader->class)
), new FieldSet(
new FormAction('process', _t('BulkLoaderAdmin.CONFIRMBULK','Confirm bulk load'))
));
}
/**
* Stub to return the form back after pressing the button.
*/
public function ConfirmForm() {
$className = $_REQUEST['LoaderClass'];
return $this->getConfirmFormFor(new $className(), $_REQUEST['File']);
}
/**
* Process the data and display the final "finished" message
*/
public function process() {
$className = $_REQUEST['LoaderClass'];
if(is_subclass_of($className, 'BulkLoader')) {
$loader = new $className();
$results = $loader->processAll($_REQUEST['Filename'], true);
return $this->customise(array(
"Message" => _t('BulkLoaderAdmin.DATALOADED', 'This data has been loaded in'),
"Results" => $results,
"ConfirmForm" => " ",
))->renderWith("BulkLoaderAdmin_preview");
}
}
}
?>